Author: Ryan Wyllie
MDL-66893 mod_forum: update navigation bar in grader UI
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4c98e56c9607d3de3395f95744eec8452841efef
http://github.com/moodle/moodle/commit/4c98e56c9607d3de3395f95744eec8452841efef
+ 3.8 en [close,mod_forum]
+ 3.8 en [hidegraderpanel,mod_forum]
+ 3.8 en [showgraderpanel,mod_forum]
+ 3.8 en [togglefullscreen,mod_forum]